Display mount



Patented Apr. 17,1945

u 1,373,375 DISPLAYIMOUNT a Carroll N. Crcss,Middlebo1-o,Mass.Application October- 14, 1942, Serial No. 461,982] 1 (c1. 40-1-1521) 5Claims.

This invention relates to display mounts; More particularly; theinvention relates to reenforced display mount body construction, whichwhilein expensive and simple in construction, is effectivei inovercomingthe warping tendencies inherent in such bodies made oflight-weight cardboard stock. a v Great difliculty has been encounteredin the construction 'of display mounts composed of two or moresubstantially coextensive boards because of the tendency of suchstructures tolwarp. These 7 tendencies have been particularly markedwhen the boards have been joined togetherbygluing,

When glue is used, it is often found that the warp-v age in boards sojoined is much in excess of [the degree to which a single board of equalsize will warp. The method of joining two or more sub divided. Thus,in aconstruction wherein the -v body is divided into three zones includingmargistantially coextensiveboards by binding them] about their edgeswith a flexible. binding material results in a constructionzthateliminates a large amount of the warpage in the marginal zones, but thismethod is subject to the disadvantage that such boards willshow agreater tendency to warp or bulge in their central areas.

It is therefore the primary object of this inven' tion'to' produce adisplay mountbcdy construction of two or more boards wherein the warpingchar acteristics heretofore experienced willbe substantially eliminated.

The primary objectof the inventionis achieved by superimposing on onefacjeof a display mount base board of light-weight stock that in itselfis normally subject to warping,- a' smaller jreenforcing board, and thenlining the superimposed boards with a flexiblelining material thateX-tends over the edges of thesmallerboard'and at- I taches the same to thesurface ofthe base board with at least some of itsedges spaced inwardlyfrom the corresponding edges of the base board.

Thisconstruction results in a display mount body having zones ofdifierent thickness that efiectively minimize the usual warpingtendencies in mount constructionsq Itmight be supposed that theformationof mount bodies in this manner would result'in'a constructionthatis merely strengthened andjre. enforced to a degree proportional tothe'add'ed bulk or area of the reenforcing board This vention, howevenisbased on the discovery. that I the resulting mount body possessesnon-warpin characteristics bearing no real relation to the size or bulkof the reenforcing body but I one.

which; on the other hand, possesses non-warping tendencies related morenearly to the number of difierent thickness zones into which the body isI ever, coincidentfi e.,, in agreement with as to,

nal zones of single board'thickness and a medial zone of double boardthickness, the marginal zones will, exhibit warping tendencies that arenot as great'as the'warping tendency in a singleboard of equal size.Themedial double zone will exhibit the minimized warping tendency of twoboards of the size of the centrally positioned reenforcing "board.Thelmarginal zones of single thickness are, of course, furtherreenforced by contact with the outer edges oi the smaller board whichprevent substantial warping of that area of the singlemarginalzonesadjacent the medial zone. The utility of the invention taught herein isemphasized by, the fact that the cardboard stock of which mounts of thischaracter are constructed will normally warp substantially in proportionto the square-of thearea. v a

These and other objectsand advantages of the invention willvbe morefullydisclosed in the fol-,

lowing description which may be read with regard to the accompanyingdrawing in which like reference numerals indicate like parts, and inwhich:

Figure 1 is a rear elevational view of one embodiment of the invention;

Figure 2 is a cross sectionalview on line 2-2.,

of Figure 1; Y r s Figure 3 is a rear elevational view of a modifiedform ofthe invention;

Figure 4 is a cross sectional ofFlgure3; p to Figure 5 is a rearelevational view of a further modification of the invention;

FigureSis a cross sectionaliview on line 6 -6 of Figure 5;

Figure 7 is an elevational of afurther.

modification of the invention; and

Figure 8 is a cross sectional View on line 87-8 o of Figure '7. H

In Figures 1 and 2 there is illustrated one embodiment ofthe inventionwhereinfa base board 40 is reenforced by the addition 'fof a smallerreenforcing board l2 attachedtogthe rear face thereof. The smaller boardI2 one edge, l4 that is coextensive with the bottoim edge l6 of the baseboardv l0 and it has two oppositely dis- I posed edges l8 and 20 thatare shorter than the corresponding opposite edges 22 and 24 of the baseboard; These edges l8 andf2 ,ll are, howposition) throughouttttheirlength with the cor-, respondingbase board edges '22 and. 'A thin,fiexible binding material 26 extends over the edges of the smallerboard I! and joins 'the'same view on line 4-4 to the base board I0. Inthe preferred form of thisembodiment of the invention the liningmaterial 26 extends about the marginal edges of the base board I andterminates on the face of the face board 28 at the front of the mount.This construction divides the mount body into a, small thin zone 30 andinto a larger thicker zone 32.

A mount supporting easel 34 adapted to swing angularly about one or morescore lines 36 may be formedin thebod'y ,ofIthe reenfor cing board I2,and in such case an"easel locking tongue 38 that differ in size.

inserting passage is preferably closed. by means of a closure member 42.The picture-inserting passage at the upper margin 40 of ther'eenforcing.board I2 is formed by slotting the base.

board I0 transversely for a sufllcient distance to accommodate. thewidth oifla, picture or other indicia to be carried on the face of thebase board. The picture-inserting passage is 0011-, veniently closed bymeans ofthe closure 42 which is formed from a. marginal-portion of therear board. f2 by cutting theyrear board and the covering sheetmaterial'finwardly from a margin of the rear board to deflne .a severedportion that is hingedly connected to the base board I0 by means. of theflexible covering material extending over the exposedfaces' of thebaseboard and the rear board. I V

In that form of construction shown inEigures 3 and 4 the base board hasattached to the rear face thereof a smaller board 52 which hasoppositely disposed horizontal edges 54 and 56" that are shorter thanthe corresponding opposite horizontal base board edges 58 and 60. Theedges 54 and 56"are,.however, coincident throughout the length thereofwith the corresponding base board edges 58 and 60. The vertical edges 02and 64. are substantially spaced from oppo site vertically disposed.base board edges 66 and 58'. This construction divides the mount bodyinto relatively thin marginal zones 10 and 12 and a thicker medial zone14. In this form of the invention, as in the other embodiments thereof,a thin, flexible binding material 16 extends over the reenforcing board52 and about the edges of the base board 50 and terminates on themargins of a face board I8 H I A mount supporting easel maybe formed inthe body of the reenforci'ng board 52 and this easel which is adapted toswing angularly about one or more scorelines82 is adapted to be held inmount supporting position by means of a locking tongue 84"t'hat swingsangularly about one or more score lines 86.

A picture-inserting slot 88 extends through one of the marginal zones topermit the insertion. of a picture 90 as shown in Figure 4.

In. that form of the invention illustrated in Figures 5 and 6, the baseboard 92 is reenforced by means of a smaller reenforcing' board 94 thatis attached to the rear face of the base board by means of a flexiblebinding. material 96' that extends over the edges of the smallerreenforcing board 94 and about the'edges of the base board 92. Thelining material 96 terminates on the face of aface board 98. In thisform of the invention the horizontally disposed .edges I00. and I02 of.the reenforcing board 94 are substantially. coextensive with thehorizontal zone while the larger zone H2 is relatively thin.

In this particular form of the invention a separately fabricated mountsupporting easel H4 is attached to thebase board 92.by means of rivetsII6. Theeasel. I'l4 isiadapted to: swing angularly into mount supportingposition about a. score line H8 and the same may be latched in mountsupporting position by means of a locking! tongue I20 that is adapted tomove angularly about ascore line I22.

In that form of the invention illustrated in Figures 7 and Bra-baseboard I30 is reenforced by the addition of a smaller reenforcing boardI32'which herein is illustrated as being attached toone facethereof bymeans ofa, flexible lining material 134 that extends over the back ofthe. base-board I30, around. the marginal'. edgesthereof; over the.marginal edges of the 118611-- forcing board I32.and which terminates.on. the; face or the reenforci'ng board I32 at. a point. somewhat inwardof the margins thereof. Alining trim I36 be glued. over the marginaledges of the lining. at-34 and. over the. facial surface of thereenforcing board [32. g

In this embodiment of the invention the. marginal edges I38 I39, [46,,and. H2 or the r'een forcing. board I32 are allinwardly spaced withrespectto the. marginal edges [44,. I45, I41, and" I48,.-respectively,of the base board I30. This construction in effect results in a mountthat ineludes five different thickness zones, these zones being. themarginal zones I50, I52, I54, of singlethickness and the central zoneI58. com

posed of. a double thickness of board.

Herein the flexible. lining material. that joins the ree'nforcing.boards .to the. base boards has been. illustrated as. extending, about.the marginal.

edges of the base board, but this construction has been shown only f'orpurpose of illustration because the inve'ntion-f'is equallyefiective if.the lin-.

ing material does. not extend about the edges of the base board in thoseconstructionswherein a joint can be made between the baseboard andreenforcing. boards without the necessity ofbinding the base boardsabout their marginal edges; the lining material being lmportant hereinto attach the smaller board to the base board and for v thi's'purpose itneed only be attached'to andextend over the inwardly spaced margins ofthe smaller board and". onto the outwardly extending margins of thebaseboard. v The embodiments of the invention herein illustrated have beenselected for the'purpose of illustration only and to make it clear thatthe invention is capable of numerous embodiments and suchillustrations'are not to be considered as limitations on the terms ofthe following claims.

I claim:

1. A picture mount comprising a base board, a

face, sheet material adhesively' secured over the i faces of thesuperposed boards to bridge from the front and rear'boards to the'projecting portions of the base board to secure the boards together," asight opening cut through the front board, and 1' the rear board and itscovering having cuts the'rethrough extending inwardly from a margin ofsaid rear board beyond which the base board pro- 2. A picture mountcomprising a base board,

an apertured front board secured thereto and forming a frame to overliethe-margins of a pictureset on said base board, a rear boardsubstantially shorter in one dimension than said bast board looselysuperposed thereon, and means for securing the rear board to the faceboard comprising sheet material which extend over the stock beingnormally subject to warping, a substantially smaller board looselysuperimposed on one face of said base board, said smaller. board havingtwooppositely disposed edges coincident throughout their length with twosimilarly disposed opposite edges of said base board, a thin flexiblelining material attached tothe face of said boards and extending overthe edges of said smaller board J'oiningthe same to said base boardthereby forming a mount body having zones of different thicknessminimizing warping tendencies of said base board, a picture-insertingpassage through said base board adjacent an edge of said smaller boardbeyond which the base board projects, and a centrally apertured faceboard overlying the marginal area of the opposite face stantiallysmaller board loosely superimposed on one face of said base board, saidsmaller board having an edge coextensive with an edge of said base boardand having two oppositely disposed edges shorter-than but coincidentthroughout I their length with two oppositely disposed edges of saidbase board for retaining a picture or the like in contact with saidface.

hIn a display mount or the like, a picturesupporting base board composedof light-Weight stock being normally subject to warping, a subof saidbase board, a thin flexible lining material adhesivelyfattached to theface of said boards and extending over the edges of said smaller boardjoining the same to said base board'there-by forming a mount body havingzones of different thickness minimizing warping tendencies of said baseboard, a picture inserting passage through said base board'adjacent anedge of said smaller board beyond which the base board projects, and acentrally apertured face board overlying the marginal area of theopposite face of said base board for retaining a picture or the like incontact with said face. v

5. In a display mount or the like, a picture-supporting base boardcomposed of light-Weight stock being normally subject to warping, asubstantially smaller board loosely superimposed on one face of saidbaseboard, said smaller board having oppositely disposed horizontal edgethat are shorter than but coincident with oppositely disposed horizontaledges of said base board and opposite vertically disposed edges thatare'substantially spaced from opposite vertically disposed edges of saidbase board, a thin flexible lining material adhesively attached to theface of said boards and extending over the edges of of said smallerboard beyond which the base board projects, and a centrally aperturedface board overlying the marginal area of the opposite face of said baseboard for retaining a picture or the like in contact with said face;

CARROLL N. CROSS.

